Το Mark Levinson № 523 είναι ο οριστικός προενισχυτής για τους λάτρεις της αναλογικής μουσικής.

Έξι αναλογικές και φωνητικές εισόδους σε επίπεδο γραμμής ταξιδεύουν μέσω του αποκλειστικού μονοπατιού Mark Levinson Pure Path διακριτής, άμεσης ζεύξης, πλήρως ισορροπημένης, διπλής μονοφωνικής σήματος για εκπληκτική καθαρότητα και απόδοση.

Με τον έλεγχο ακρίβειας που περιλαμβάνει έναν διακριτό, ισορροπημένο έλεγχο έντασης R-2R Ladder, ένα στάδιο Pure Phono κατηγορίας A και μια έξοδο ακουστικών Main Drive κατηγορίας-A, ο προενισχυτής № 523 προσφέρει μια ασυμβίβαστη απόδοση ανεξάρτητα από την αναλογική πηγή.

Το 3 523 στεγάζεται σε σασί αλουμινίου 6000 σειρών, όπως και ο εξοπλισμός Mark Levinson, το 3 523 είναι σχεδιασμένο και χειροποίητο στις ΗΠΑ.

№ 523 Highlights
Pure Path discrete, direct coupled, fully balanced, dual-monaural signal path
Discrete, balanced R-2R Ladder volume control for precision and performance
Class-A Pure Phono stage with physically separated channels for MC and MM
Class-A Main Drive Headphone output for up to 32-ohm headphones using main circuit
Six analog line-level and phono inputs; balanced, single-ended, and headphone outputs
Selectable fourth-order, 80 Hz high-pass filter allows seamless integration of subwoofers
Designed and handcrafted in the USA
General Specifications
Line Stage Gain, Normal Gain Setting 13.5dB balanced; 7.5dB single-ended
Line Stage Frequency Response, 20Hz to 20KHz ±0.02dB
Line Stage Frequency Response, 0.4Hz to 370Hz +0.1 / -3dB
THD+N @ 1KHz (2VRMS Single-Ended or 4VRMS Balanced Output) <0.003%
Signal-to-Noise Ratio (REF. To 2VRMS Single-Ended or 4VRMS Balanced, Max Vol.) >115dB @ 1kHz
Crosstalk @ 1KHz <-107dB
Channel Separation Below Noise Floor (>115dB @ 1KHz)
Input Impedance >45kΩ
Output Impedance <80Ω single ended, <160Ω balanced
Maximum Input Level, Normal Gain Setting >10VRMS, single ended, >15VRMS, balanced
Maximum Output Level >11VRMS single ended, >22VRMS balanced
Headphone Output Impedance selectable; <3Ω or 75Ω
Headphone Maximum Output, Low Impedance Setting, 300Ω, 20Hz TO 20KHz, <0.1% THD
Headphone THD+N, 20Hz TO 20KHz, 2V RMS <0.03% @ 30Ω, <0.01% @ 300Ω
RIAA Frequency Response 20Hz to 20kHz, ±0.3dB
Infrasonic Filter Defeatable, 15Hz, 2nd order (12dB/octave)
Moving Magnet Mode, Input Resistance 47 47kΩ
Moving Magnet Mode, Input Capacitance Selectable; 50, 100, 150, 200, or 680pF
Moving Magnet Mode, Gain 40dB @ 1kHz
Moving Magnet Mode, THD+N, 20Hz to 20KHz, 2VRMS Output <0.03%
Moving Coil Mode, Input Resistance selectable; 20, 33, 50, 66, 100, 200, 330, 500, 1000, or 47kΩ
Moving Coil Mode, Input Capacitance 50pF
Moving Coil Mode, Gain Selectable; 50, 60, or 70dB @ 1kHz
Moving Coil Mode, THD+N, 20Hz to 20KHz, 2VRMS Output <0.02%, 50 or 60dB settings, <0.04, 70db setting
Analog Inputs 2 balanced (XLR), 3 single-ended (RCA) line, 1 single-ended (RCA) phono w/ ground
Analog Outputs 1 balanced (XLR); 1 pair single-ended (RCA), 1 headphone (¼”, 6.3mm TS)
Control Connectors Ethernet (RJ45), RS-232 (RJ12), Trigger In and Out, IR In, USB-A, Mini USB
Mains Voltage 100VAC, 115VAC, or 230VAC, factory set
Power Consumption 0.4W Green Standby, 5W Power Save, 67W Normal Standby, 70W On, idle
Dimensions Height (with feet)
Net weight 39 lbs (17.7kg)
Shipping weight 58 lbs (26.3kg)
Audio Specifications
Line Stage Gain, Normal Gain Setting 13.5dB balanced; 7.5dB single-ended
Line Stage Frequency Response, 20Hz to 20KHz ±0.02dB
Line Stage Frequency Response, 0.4Hz to 370Hz +0.1 / -3dB
THD+N @ 1KHz (2VRMS Single-Ended or 4VRMS Balanced Output) <0.003%
Signal-to-Noise Ratio (REF. To 2VRMS Single-Ended or 4VRMS Balanced, Max Vol.) >115dB @ 1kHz
Crosstalk @ 1KHz <-107dB
Channel Separation Below Noise Floor (>115dB @ 1KHz)
Input Impedance >45kΩ
Output Impedance <80Ω single ended, <160Ω balanced
Maximum Input Level, Normal Gain Setting >10VRMS, single ended, >15VRMS, balanced
Maximum Output Level >11VRMS single ended, >22VRMS balanced
Headphone Output Impedance selectable; <3Ω or 75Ω
Headphone Maximum Output, Low Impedance Setting, 300Ω, 20Hz TO 20KHz, <0.1% THD
Headphone THD+N, 20Hz TO 20KHz, 2V RMS <0.03% @ 30Ω, <0.01% @ 300Ω
RIAA Frequency Response 20Hz to 20kHz, ±0.3dB
Infrasonic Filter Defeatable, 15Hz, 2nd order (12dB/octave)
Moving Magnet Mode, Input Resistance 47 47kΩ
Moving Magnet Mode, Input Capacitance Selectable; 50, 100, 150, 200, or 680pF
Moving Magnet Mode, Gain 40dB @ 1kHz
Moving Magnet Mode, THD+N, 20Hz to 20KHz, 2VRMS Output <0.03%
Moving Coil Mode, Input Resistance selectable; 20, 33, 50, 66, 100, 200, 330, 500, 1000, or 47kΩ
Moving Coil Mode, Input Capacitance 50pF
Moving Coil Mode, Gain Selectable; 50, 60, or 70dB @ 1kHz
Moving Coil Mode, THD+N, 20Hz to 20KHz, 2VRMS Output <0.02%, 50 or 60dB settings, <0.04, 70db setting
Analog Inputs 2 balanced (XLR), 3 single-ended (RCA) line, 1 single-ended (RCA) phono w/ ground
Analog Outputs 1 balanced (XLR); 1 pair single-ended (RCA), 1 headphone (¼”, 6.3mm TS)
Control Connectors Ethernet (RJ45), RS-232 (RJ12), Trigger In and Out, IR In, USB-A, Mini USB
Mains Voltage 100VAC, 115VAC, or 230VAC, factory set
Power Consumption 0.4W Green Standby, 5W Power Save, 67W Normal Standby, 70W On, idle
Dimensions Height (with feet)
Net weight 39 lbs (17.7kg)
Shipping weight 58 lbs (26.3kg)